A "Time Traveler" is a fictional character or concept that can move between different points in time, often depicted in literature, movies, and television. This idea allows individuals to explore past events or future possibilities, creating intriguing narratives about history and potential outcomes. Time travel is commonly associated with various theories in physics, such as those involving wormholes or the theory of relativity. Popular examples of time travelers include characters from H.G. Wells' "The Time Machine" and the Doctor from the television series Doctor Who. These stories often explore the consequences and paradoxes of altering time.